Building a floor to ceiling built-in bedroom cupboard

Try to melt down the 'ton' of frost with a hair dryer.

Make sure that your drawer is aligned properly and that there is no ice build up anywhere. Mine built up some ice in the very back and side somehow, and caused the door not to close tightly which lead to a similar problem. Removing the ice build up cured it.

If they look like the image. The 2 screws are the mounting holes, you screw those to the top of the door. Edge of metal support alined with the edge of the door, both in the same position one at the front corner of the door and the other at the back corner. The roller is mounted with a screw through the diagonal slot on the side. There are 3 positions. You place it in whichever position you need so it clears the floor. The highest position will give you the least floor clearance, the lowest will give you the most floor clearance. Normally both rollers are in the same position, unless your floor is not level.

Yes that could be the problem.

Most ovens are based on a modular 600mm width cupboard dimension. Heights can vary but that not so much of a problem so you should be ok with most new ovens.

Check on suppliers websites for details.

I would simply slide the unit under the counter and connect the inlet and drian hose permenantly.If the unit is not tall enough and sits too low then build a shelf or false floor in the cupboard for it to stand on.

If you just want a half bath (sink, mirror, toilet, lighting, vent, and flooring, you can build a small one for about $6,000. Remember you will want to finish the walls, and add baseboards, and a door.I would hit the seller up for a reduction in sales price. Nobody has upstairs bedrooms without baths anymore.

you will have to modify your cabinet